Claude Haiku 4.5 vs Grok 4
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Grok 4 by xAI wins on 10 of 14 benchmarks against Claude Haiku 4.5 by Anthropic, which leads on 4. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from the AI Value Index.
Category-by-Category Breakdown
General Intelligence: In general intelligence, Grok 4 scores 1430 on Chatbot Arena ELO compared to Claude Haiku 4.5's 1220, while Grok 4 scores 87.0% on MMLU-Pro compared to Claude Haiku 4.5's 65.0%.
Coding: In coding, Grok 4 scores 90.0% on HumanEval+ compared to Claude Haiku 4.5's 78.0%, while Grok 4 scores 72.0% on SWE-bench Verified compared to Claude Haiku 4.5's 30.0%, while Grok 4 scores 65.0% on LiveCodeBench compared to Claude Haiku 4.5's 35.0%.
Math: In math, Grok 4 scores 91.0% on MATH compared to Claude Haiku 4.5's 70.0%, while Grok 4 scores 97.0% on GSM8K compared to Claude Haiku 4.5's 88.0%.
Reasoning: In reasoning, Grok 4 scores 87.0% on GPQA Diamond compared to Claude Haiku 4.5's 40.0%, while Grok 4 scores 50.0% on ARC-AGI compared to Claude Haiku 4.5's 18.0%.
Context: In context, Grok 4 scores 256K on Context Length compared to Claude Haiku 4.5's 200K.
Pricing Comparison
Claude Haiku 4.5 costs $1.0/1M input tokens and $5.0/1M output tokens, while Grok 4 costs $3.0/1M input and $15.0/1M output. Claude Haiku 4.5 is the more affordable option for API usage.
Speed Comparison
Claude Haiku 4.5 generates output at 180 tok/s compared to Grok 4's 55 tok/s, and the time to first token is 120 ms for Claude Haiku 4.5 versus 500 ms for Grok 4. Claude Haiku 4.5 delivers faster throughput.
Verdict
For developers prioritizing affordability and speed, Claude Haiku 4.5 has the edge. For those who value coding and general intelligence and math, Grok 4 is the stronger choice.
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Claude Haiku 4.5 vs Grok 4 — FAQ
Which is better, Claude Haiku 4.5 or Grok 4?
Grok 4 wins on more benchmarks overall (10 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Haiku 4.5 compare to Grok 4 for coding?
Grok 4 is better for coding, scoring 72.0% on SWE-bench Verified compared to 30.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Claude Haiku 4.5 cheaper than Grok 4?
Yes, Claude Haiku 4.5 is cheaper. Claude Haiku 4.5 costs $1.0/1M input and $5.0/1M output tokens. Grok 4 costs $3.0/1M input and $15.0/1M output tokens.
Which is faster, Claude Haiku 4.5 or Grok 4?
Claude Haiku 4.5 is faster, generating output at 180 tok/s compared to 55 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude Haiku 4.5 vs Grok 4 comparison cover?
This comparison covers 14 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, MATH, SWE-bench Verified, GPQA Diamond, Output Speed, Time to First Token, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.